Icon for a portion of a display screen



FIG. 1 is a front view if an icon for a portion of a display screenshowing my new design;

FIG. 2 is a front view of a second embodiment thereof;

FIG. 3 is a front view of a third embodiment thereof;

FIG. 4 is a front view of a fourth embodiment thereof;

FIG. 5 is a front view of a fifth embodiment thereof; and,

FIG. 6 is a front view of a sixth embodiment thereof.

The broken line showing of a portion of a display screen and otherelements form no part of the claimed design.

The ornamental design for an icon for a portion of a display screen, asshown and described.